The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 05, 1995
Filed:
Nov. 29, 1993
Applicant:
Inventors:
Derek Aldcroft, South Wirral, GB;
John R Newton, Cheshire, GB;
James P Quinn, Birkenhead, GB;
Peter W Stainier, Cheshire, GB;
Assignee:
Unilever Patent Holdings B.V., Rotterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423339 ; 423335 ; 524492 ;
Abstract
An amorphous silica, especially precipitated silica, suitable for use in toothpastes, has a high abrasivity represented by a perspex abrasion value in the range from about 23 to about 35.
Aldcroft, Derek. (1995). Amorphous silica (U.S. Patent No. 5447704). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5447704
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile